| Boulder to Wayne (Michigan) | 1,144.90 mi (1,842.54 km) |
| Boulder to Waynesboro (Pennsylvania) | 1,461.11 mi (2,351.43 km) |
| Boulder to Waynesboro (Virginia) | 1,415.28 mi (2,277.67 km) |
| Boulder to Weatherford (Oklahoma) | 473.79 mi (762.49 km) |
| Boulder to Weatherford (Texas) | 651.76 mi (1,048.91 km) |
| Boulder to Webb City (Missouri) | 615.14 mi (989.97 km) |
| Boulder to Webster (Texas) | 924.02 mi (1,487.06 km) |
| Boulder to Webster Groves (Missouri) | 801.70 mi (1,290.22 km) |
| Boulder to Weddington (North Carolina) | 1,382.20 mi (2,224.43 km) |
| Boulder to Weigelstown (Pennsylvania) | 1,497.76 mi (2,410.41 km) |
| Boulder to Weirton (West Virginia) | 1,298.44 mi (2,089.64 km) |
| Boulder to Wekiwa Springs (Florida) | 1,560.86 mi (2,511.96 km) |
| Boulder to Welby (Colorado) | 19.84 mi (31.93 km) |
| Boulder to Wellington (Colorado) | 48.43 mi (77.94 km) |
| Boulder to Wellington (Florida) | 1,703.61 mi (2,741.70 km) |
